Two towns X and Y both on latitude 60oS have longitude 27oE and 33oW respectively. Find to the nearest kilometers, the distance between X and Y measured along the parallel of latitude. [Take 2πR = 4 x 104km, where R is the Radius of the earth]

A. 28850km
B. 16667km
C. 8333km
D. 6667km
E. 3333km

Correct Answer: Option E

E. 3333km